JPS62245405A - Error display system for numerical controller - Google Patents

Abstract

PURPOSE:To confirm the concrete error content of a non-fixed message, by inputting the non-fixed message to a CRT display device when an error message is defined by a processing program. CONSTITUTION:The error message defined by the processing program is inputted to and stored at a non-fixed message display control circuit 2c as a message data signal 7. Meanwhile, in process of the processing program, an arithmetic control part 1 outputs a display command signal 3 to a picture display control circuit 2, if a certain error exists in the processing program. Simultaneously, when the error message is defined by the processing program, the display command signal is switched by a selection circuit 2d, by outputting a selection signal 8, and a non-fixed message out of a fixed message display control circuit 2b which displays a fixed message, and the non-fixed message display control circuit 2c defined by the processing program, is selected, and the non-fixed message is outputted to a CRT4 with an error number 5, the being displayed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a numerical control device that controls the axis movement of a machine tool or the like according to a machining program, and is capable of displaying error status of the machining program. Regarding error display system.

[Conventional technology]

Figure 4 shows a conventional numerical control device (hereinafter referred to as an NC device)
1 is a block connection diagram showing an error display system of a machining program in which 1 is an arithmetic control section, 2 is a screen display control circuit, and this is an error number display control circuit 2a and a predetermined fixed message in the system. and a fixed message display control circuit 2b that displays the fixed message display control circuit 2b. 3 is a display command signal, which is manually input to the screen display control circuit 2, and displays display data on a CRT display device (hereinafter referred to as CRT).
4).

Next, the operation will be explained. The machining program including the user macro program is processed by the arithmetic control section 1 of the numerical control device, and if an error in the program is discovered during the processing, an error number and an error number are displayed on the screen display control circuit 2.
A display command signal 3 for commanding an error message and error processing is output. Based on this display command signal, the screen display control circuit 2 outputs an error number 5 and an error message 6 to the CBr 4 as shown in FIG. 5, and displays a screen as shown in FIG. 5, for example. Further, the error message 6 displayed at this time is an abstract message for general purpose, and the concrete contents cannot be grasped from this message.

[Problem that the invention seeks to solve]

The error display system of conventional numerical control devices is configured as described above, so even if the error number and error message of the user macro are displayed as described above, the displayed number and error message are not the same as those of the user macro. There were problems such as not being able to easily determine what kind of error it was.

This invention was made to solve the above-mentioned problems, and it is possible to define specific error contents such as a user macro as an error message in a machining program that includes the user macro, and the user macro An object of the present invention is to obtain an error display system for a numerical control device that can display error messages on a CRT.

[Means for solving problems]

The error display system for a numerical control device according to the present invention processes a machining program in an arithmetic control section, and outputs signals of an error number, an error message, and a display command for error processing display when there is an error in the machining program. Then, based on each of the above error signals, the error number display control circuit displays the error number on the CRT display device, stores a predetermined fixed error message according to the type of error in the fixed message display control circuit, and , this can be displayed on the CRT display device, and the non-fixed message display control circuit stores the specific non-fixed error message defined in the processing program and displays the non-fixed message on the CRT display device. The display of one or both of these fixed and non-fixed error messages is selectively enabled by a selection circuit.

[For production]

When an error message is defined in a machining program, the selection circuit of the present invention inputs a non-fixed message, which is an output of a non-fixed message display control circuit, into a C-T display device, so that the error message becomes non-fixed. The specific error details of the message can be easily confirmed on the RT display device.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 1 is an arithmetic control section, and 2 is a screen display control circuit, which is composed of an error number display control circuit 2as, a fixed message display control circuit 2b, a non-fixed message display control circuit 2C, and a selection circuit 2d. 3 is a display command signal output from the calculation control unit 1, CBr4
command to display. 7 is an error message defined in the machining program as a message data signal,
It is input to the non-fixed message display control circuit 2C and stored. 8 is a specific error message selection signal.

FIG. 2 is an example of a machining program for an NC device to which the present invention is applied, and includes a program that defines error numbers and error messages in association with each other.

Next, the operation will be explained. The machining program created in the manner shown in FIG. 2 is processed by the arithmetic control section 1, and the error message defined in the machining program is inputted as a message data signal 7 to the non-fixed message display control circuit 2C. be remembered. On the other hand, if there is an error in the machining program during processing of the machining program, the arithmetic control section 1 outputs a display command signal 3 to the screen display control circuit 2. At the same time, if an error message is defined in the machining program, the selection signal 8 is output, the selection circuit 2d switches the display command signal, and the fixed message display control circuit 2b and the machining program display the fixed message. Select the non-fixed message display control circuit 2C that displays a non-fixed message from among the non-fixed message display control circuits 2C that display the defined non-fixed message, and as shown in FIG. A message (for example, 6a) is output to the CRT 4 and displayed.

In addition, in the above embodiment, when displaying the error message defined in the machining program on the CRT 4, fixed error messages are not displayed on the CRTIC, but two types of error messages can be displayed on the CRT 4 at the same time. You can.

In addition, in the above embodiment, the error message was defined in the machining program, but instead of this, a new error message definition screen is provided so that the error message corresponding to the error number of the user macro can be defined. This may be displayed on the CRT 4.

Furthermore, in the above embodiment, the error message defined in the machining program is
VERFLOWJ, but this is an example, and NC
It can be any word or character that the device allows.

Furthermore, the present invention is not limited to user macros, and can easily be applied to display errors in other machining programs.

〔Effect of the invention〕

As described above, according to the present invention, a selection circuit selects a non-fixed message display control circuit that controls display of a non-fixed error message that can be defined in a machining program, and a conventional fixed message display control circuit. Error messages with specific fixed contents and fixed error messages are configured so that they can be displayed selectively or simultaneously, so when you see an error message on the CRT5, you can immediately and easily see what kind of error the user macro has caused. It has the effect of being easily distinguishable.

[Brief explanation of drawings]

FIG. 1 is a block connection diagram showing an error display system for a numerical control device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of a machining program used in a numerical control device to which the present invention is applied, and FIG. 3 is a diagram according to the present invention. FIG. 4 is a block connection diagram showing an error display system of a conventional numerical control device, and FIG. 5 is an explanatory diagram of a conventional CRT display screen. 1 is an arithmetic control unit, 2a is an error number display control circuit, 2b
2C is a fixed message display control circuit, 2C is a non-fixed message display circuit, 2d is a selection circuit, and 4 is a CRT. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Patent applicant: Mitsubishi Electric Corporation (2 others) Figure 2 Figure 3 Procedural amendment (voluntary)

Claims (1)

[Claims] an arithmetic control unit that processes the machining program and outputs signals such as an error number, an error message, and a command to display an error processing display when an error is found in the machining program; and a CRT based on the signal of the error number.
an error number display control circuit that displays an error number on a display device; a fixed error message that stores a predetermined fixed error message according to the type of error; and a fixed error message that displays the fixed error message on the CRT display device; a display control circuit; a non-fixed message display control circuit that stores a specific non-fixed error message defined in the processing program and causes the non-fixed error message to be displayed on the CRT display; An error display system for a numerical control device, comprising: a selection circuit that selects one or both of a fixed error message and a non-fixed error message to enable display on the CRT display device.